Color

#381e52

#381e52
hex#381e52
rgbrgb(56, 30, 82)
hslhsl(270, 46%, 22%)
oklchoklch(0.298 0.093 304.4)
Closest name: Fabric of Space (#341758)Relative luminance 0.0238

Colors that go with #381e52

Charcoal, Dark Olive Green and Sea Green lead the list. Each partner is a real named colour with the reason it works — a wheel relationship, a neutral that carries it, or a pairing lifted from a palette or brand system that actually shipped — and every pair opens in the palette tool.

Tints & shades

Every swatch is its own page — click any to analyze it.

Harmonies

Complementary

Open in tool →

#38521e

#1e1e52 · #521e52

#52381e · #1e5238

Split-complementary

Open in tool →

#52521e · #1e521e

#521e1e · #38521e · #1e5252

Contrast

#381e52 as textRatioAAAA largeAAAFix
Aaon white
14.23:1passpasspassPasses AAA — no fix needed.
Aaon black
1.48:1failfailfail
  • AA: use #915fc4 as the text (4.64:1)
  • AAA: use #ad88d3 as the text (7.24:1)
  • AA: or shift the background to #919191 (4.52:1)
  • AAA: or shift the background to #b8b8b8 (7.17:1)

Fixes keep hue and saturation and move lightness only, so the suggestion stays on-brand. Ratios are symmetric: the same numbers apply with #381e52 as the background.

Brands using this color

No public brand in the corpus uses this exact color yet. Extract a brand to add one.

Fonts for this mood

#381e52 reads as cool, dark, luxury. The font library is tagged with the same vocabulary:

mcpConnect your agent — build around #381e52
live endpoint

Point any MCP client at the shared colors endpoint and your agent gets the same engine as this page — direct_palette, edit_direction, check_palette, check_contrast — read-only, no key. Every direction it proposes comes with a /colors/d/… link: open it, lock what you like, paste the link back, and the agent edits rather than re-rolls.

endpointhttps://mcp.brandsweets.com/colors/mcp
claude mcp add --transport http brandsweets-colors https://mcp.brandsweets.com/colors/mcp
try this prompt

analyze #381e52 and generate a 5-color palette that keeps it as the primary; give me the /palettes/new link

tool url/palettes/new/381e52-b59cc4-c9cb62-2c1f2d-eae9f1?lock=0&style=vibrant

Want the agent to remember your picks and write them into a living brand? Create a free BrandSweets workspace.

Machine-readable: color.md